20474783

素因数分解:

$7^1\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{349}}^1$

素因数の和:419

約数の個数: 24

約数和(自身を含む): 25788000

約数和(自身を除く): 5313217

約数列:

[1, 7, 17, 29, 119, 203, 289, 349, 493, 2023, 2443, 3451, 5933, 8381, 10121, 41531, 58667, 70847, 100861, 172057, 706027, 1204399, 2924969, 20474783]

約数ペア:

[(1, 20474783), (7, 2924969), (17, 1204399), (29, 706027), (119, 172057), (203, 100861), (289, 70847), (349, 58667), (493, 41531), (2023, 10121), (2443, 8381), (3451, 5933)]